The wikipedia entry about the Davy lamp.
Something that falls over topples and ends up lying on the ground.
Example: He leaned back on the chair too far and it fell over.
use something for your advantage
Example: You should make use of our language library.
for more idioms and common expressions.
There are two spellings of the word pronounced 'principle'. Follow the link to find out more.
To blow something out is to extinguish it with a puff of air.
Example: I think you should blow out the candles.
For more meanings of the phrasal verb blow out
, follow the link below to our language library.